Gaseous Exchange

Where does gas exchange primarily occur in the respiratory system?

• Trachea

• Bronchi

• Aveoli

• Larynx

Which two gases are exchanged during gas exchange?

• Nitrogen and Oxygen

• Oxygen and Carbon Dioxide

• Carbon Dioxide and Nitrogen

• Hydrogen and Oxygen

What is the process by which gases move from an area of high concentration to an area of low concentration?

• Osmosis

• Active Transport

• Diffusion

• Filtration

What are the tiny blood vessels surrounding the alveoli called?

• Veins

• Arteries

• Capillaries

• Bronchioles

How is oxygen primarily transported in the blood?

• Dissolved in plasma

• Attached to white blood cells

• Attached to red blood cells

• Combined with nitrogen

What is the purpose of the respiratory membrane?

• To filter air entering the lungs

• To warm and humidify inhaled air

• To facilitate gas exchange between alveoli and capillaries

• To produce mucus

During exercise, what happens to the rate of gas exchange?

• It decreases

• It remains the same

• It increases

• It stops completely